| Performance Level | |||||||
| M7 | M6 | M5 | M4 | M3 | M2 | M1 | |
| Features | |||||||
| Processing channels | 15 | 12 | 10 | 6 | 6 | 4 | 4 |
| Hearing programs | 5 | 4 | 3 | 3 | 3 | 3 | 3 |
| In-Situ Sound Optimisation | • | • | • | • | • | • | • |
| Acoustic Situation Technology | 11 (Linked) | 7 (Linked) | 4 | 3 | |||
| Impulse Noise Rejection II | • | • | • | ||||
| Speech Enhancer II | II/Linked | Linked | |||||
| High Frequency boost | • | ||||||
| Accessories | |||||||
| Acoustic RC App | • | • | • | • | • | • | |
| RC-DEX | • | • | • | • | • | • | • |